why cant i print one layer thick walls?

[billplate 0]

i have an ultimaker2 with the default 0.4mm nozzle and cura has this same value in the nozzle size settings box. however if i try to print anything,like curas own suport structures, i.e. somthing 0.4mm thick i get this alising affect where the printer trys to break a continues line into small increments. basically it makes a total mess.

why is it doing this and is there some setting im missing that i need to activate to print one layer thick walls?

thanks

Edited February 13, 2016 by Guest

[eldrick 65]

Try making the walls .41mm or .42mm thick.

It's the curves that make the computed thickness slightly too thin, in Cura's view, so it skips the "too-thin" parts.

[Labern 775]

Look in layer view to see if the lines are continuous or broken up. If the are continuous the you may have under extrusion. Could be caused by printing to fast or blocked nozzle so something else.

If it's broken up then you need to design slightly thicker walls as Eldrick says.

You can also check x-ray mode to see if there are any red areas which are problems with the model.